1-Ethynyl-2-methyl-4-(trifluoromethoxy)benzene CAS 2503208-09-9
| CAS No. | 2503208-09-9 |
| Molecular Formula | C10H7F3O |
| Molecular Weight | 200.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-Ethynyl-2-methyl-4-(trifluoromethoxy)benzene (C10H7F3O) contains a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 200.16 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 1-Ethynyl-2-methyl-4-(trifluoromethoxy)benzene (CAS 2503208-09-9), a certified reference material (molecular formula C10H7F3O, MW 200.16 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H7F3O |
| Molecular Weight | 200.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | F-containing |
Related Ethynyl Standards
- 2-Ethynyl-1-methoxy-4-(trifluoromethyl)benzene (CAS 1211587-48-2)
- 1-Ethynyl-4-(2,2,2-trifluoroethoxy)benzene (CAS 1823504-62-6)
- 1-Ethynyl-3-methoxy-5-(trifluoromethyl)benzene (CAS 2307299-85-8)
- 1-Ethynyl-4-methoxy-2-(trifluoromethyl)benzene (CAS 2229518-36-7)
- 4-Ethynyl-2-methoxy-1-(trifluoromethyl)benzene (CAS 2228650-14-2)
- 4-Ethynyl-1-(4-fluorophenyl)-2-methyl-1H-imidazole (CAS 761426-56-6)
- 1-Ethynyl-4-phenylcyclohexan-1-ol (CAS 29071-43-0)
- 1-Ethynyl-4-heptylbenzene (CAS 79887-12-0)
Recommended Standards
- 1-[4-(Trifluoromethyl)phenyl]-2-propyn-1-ol (CAS 83494-26-2)
- 1-[3-(trifluoromethyl)phenyl]prop-2-yn-1-ol (CAS 3108-33-6)
- 1,1,1-Trifluoro-4-phenylbut-3-en-2-one (CAS 86571-25-7)
- 1-Methoxy-4-(trifluoroprop-1-yn-1-yl)benzene (CAS 82203-83-6)
- 1-(3-Fluorophenyl)-2-(isopropylthio)ethan-1-one (CAS 1178645-35-6)
- 1-(4-Aminopiperidin-1-yl)-2-methylpropan-2-ol (CAS 1114856-12-0)
- Tris(4-(bromomethyl)phenyl)amine (CAS 100693-36-5)
- N-(1-Methyl-1H-indol-5-yl)-N'-(3-methyl-5-isothiazolyl)urea (CAS 152239-46-8)
- CAS 606143-88-8 (CAS 606143-88-8)
- Phenylthiotri-n-butyltin (CAS 17314-33-9)
- tert-Butyl 1,6-diazaspiro[3.4]octane-6-carboxylate oxalate(2:1) (CAS 1523618-28-1)
- 850501-35-8 6-METHOXY-2-(TRIBUTYLSTANNYL)PYRIMIDINE DTXSID00479792 (CAS 850501-35-8)
- Methyldopa EP Impurity D (CAS 2799-15-7)
- Semaglutide impurity 247 (CAS CATO-C4X-2226247)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com